Technical Tip: How to extend CMDB backup history

[mbenvenuti]

Description	This article describes how to extend CMDB backup history.
Scope	FortiSIEM.
Solution	Currently, FortiSIEM performs a CMDB backup twice a day. The first occurs at 3AM and the second occurs at 1PM. As the backup is saved at /data/archive/cmdb/ by default, only the very last backup remains available. It can be useful to save these backups frequently to have a longer backup history. To do this: Add an empty 200GB disk to the FortiSIEM from the VM Platform or using a USB disk on a hardware machine. Locate it and format it with the preferred filesystem. fdisk -l mkfs.xfs -f /dev/sdf Mount the disk: mkdir /backup_history echo "/dev/sdf /backup_history xfs defaults 0 0" >> /etc/fstab systemctl daemon-reload mount /backup_history Load the script. Copy the cmdb_backup_hist.sh script on /backup_history using winSCP and set the permissions accordingly: chmod +x /backup_history/cmdb_backup_hist.sh Configure execution once every day at 4AM: echo "0 4 * * * root /backup_history/cmdb_backup_hist.sh &> /dev/null" > /etc/cron.d/cmdb_backup CMDB Backups will be stored at /backup_history/. https://crontab.guru/ can help with defining schedules. Check execution was successful with the 'journalctl -u crond.service' command.